The primary advantage of grapevines occurs when they transmit incorrect but timely information.

Grapevines (informal communication channels) can sometimes transmit incorrect information that can be detrimental to the organization. The advantage comes from the timely dissemination of information, even if it is incorrect, allowing the organization to prepare and respond quickly to potential issues. However, it is important for organizations to also have formal communication channels to ensure accurate and reliable information is being shared.